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Parameters and installation requirements of metal tube rotameter

Author: Release date: March 25, 2017 09:11:40 Source: Shanghai Cixi View: 94
Metal tube rotameter is a kind of very solid and durable rotameter. Compared with glass tube rotameter, although the measurement can not be seen, its durability is far better than glass tube rotameter, so it is still very advantageous. The following small series will introduce the parameters and installation requirements of metal tube rotameter.

Technical parameters of metal tube rotameter:

1. Measuring tube material: common 1Cr18Ni9Ti, corrosion-resistant 0Cr18Ni12Mo2Ti, 316L, 316 lining F46, etc. If the user has special requirements, special orders can be made.

2. Measurement range: water (2.5-6000) l / h; air (0.07-2000) m3 / h (at 0.101025 MPa, 20 ℃).

3. Range ratio: 10:1.

4. Power source: DC 24 (1 ±? 15%) v.

5. Connection mode: flange connection, thread connection, etc.; the flange adopts GB / t9119.8-10 standard.

6. Working pressure: DN 15-50, 4 MPa; dn80-100, 1.6 MPa.

7. Temperature effect: 0.5% / 10 ℃.

8. Viscosity of liquid medium: DN 15 < 5MPa · s; DN25 ~ 100 < 5MPa · s.

9. Total length of flowmeter: DN 15-100 250mm.

10. Model with safety barrier: lb906.

11. Accuracy level: 1.5, 2.5.

12. Medium temperature: - 80 ℃ - 200 ℃ (lined F46 flowmeter 0 ℃ - 80 ℃).

13. Output signal: two wire system (4 ~ 20) MA, three wire system (0 ~ 10) MA.

14. Ambient temperature: - 25 ℃ ~ 55 ℃.

15. Linearity: 1%;

16. Power consumption: 25MW.

17. Load resistance: DC (0-10) MA (0-1) k Ω;

  (4~20)mA?????? (0~600)Ω。

18. Connecting cable: RVVP 3 × 28 / 0.15.

19. Explosion proof grade: exib Ⅱ 2ct5 (Certificate No.: gyb03582u).

Installation requirements of metal tube rotameter:

When used for gas measurement, the pipeline pressure should not be less than 5 times of the pressure loss of the flowmeter, so that the float can work stably.

The cone tube of the metal tube rotameter must be installed vertically and not inclined. During installation, it should be strictly calibrated with a level gauge and should not be stressed during assembly. The medium flow direction of the vertical mounted rotameter is from bottom to top, and the medium flow direction of the horizontal mounted rotameter should be consistent with the marked direction.

In order to facilitate the use and disassembly inspection, the valve group is generally required to be installed.

If the medium contains ferromagnetic materials, a magnetic filter should be installed; if the medium contains solid impurities, it should be considered to install a filter between the valve and the straight pipe section.

The remote part of the remote transmission metal tube rotameter is coupled with the rotor by magnetism. If the medium contains small particles which are easy to be adsorbed by magnetic materials, the rotor is easy to be worn and jammed, resulting in inaccurate or unable measurement. The solution is to install a magnetic filter in front of the flowmeter.

In order to avoid the deformation of the flowmeter caused by the pipeline, the flange of the process pipeline must be coaxial and parallel to the flange of the flowmeter. The pipe support should be used to avoid the pipeline vibration and reduce the axial load of the flowmeter. The control valve in the measurement system should be installed at the downstream of the flowmeter.

The inlet of metal tube rotameter should have a straight pipe section of more than 5 times the pipe diameter, and the outlet should have a 250mm straight pipe section.

The above is the introduction of Shanghai Cixi metal tube rotameter parameters and installation requirements, hope to help you, if you still have related product problems, you can dial the page of the consultation phone! The company provides 24-hour service!

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